...for Tektronix 400 Series Oscilloscopes with 8x10 (0.8/DIV) Max Display, with C-30A Camera and C-30 Series Camera Pack Film Back.
Ummm...yeah. What he said. What did he say? Basically, this:
I grabbed this nifty piece of industrial technology for a scant 99 cents on eBay. It was super dirty, but underneath the grime I found a minty camera! So what exactly is this camera for? Well, oscilloscopes, of course.
So lemme go grab my oscilloscope and hook this baby up. Oh, what? I don't have an oscilloscope? Hmmm...so what good is this thing? Lots of good...lots. of. good. As it turns out. See, the interesting thing about this camera is that it is built to take photos of a screen that is seemingly microns away from the front of the camera. This means that it takes pictures of things really close to the front of the camera...anything that is super close to the camera. Close= macro. So I have a 99 cent macro Polaroid camera! Nice.
Anyway, let's check out the camera. I'll break it down for you. First of all, this thing is big and heavy. All that blue? Top-grade cast metal. Total machine shop quality gear here...straight outta shop class in high school. Compared to the Colorpack III, it's like Frankenstein's monster.
No plans to strap this around my neck and ride around on my bike. But plans change, baby. Okay, so it's huge and heavy. How does is work? You can see it has a Polaroid back on it...
The back comes apart from the rest of the camera. (Doh! I totally had film in the camera when I opened this up. Dumbass.)
Interesting to note the cast for the Polaroid back includes an indentation where a shutter button would normally go.
The camera body is made up of a few different sections. The back end obviously hooks to the Polaroid back, and has a locking mechanism (or latch) on top, and a tripod mount below.
Fun to see the inspection date. Probably the last time it was used, as well? There was a dried-up pack of Type 107 in the camera when I got it. Dried-up as in didn't work. But I get excited even if I get a pack of non-working film. It's old film! Can't help it!
So there are two sets of bellows. The shutter itself is in the middle of the body, not the end. The front of the camera is just a large open area, where you would attach it to an oscilloscope.
The shutter has both f-stop and shutter speed settings. The aperture goes from 2.8 to 16... so it opens quite wide. You can also see the shutter release and a spot for a release cable.
The shutter speeds range from Bulb to 60.
In the above shot you see the other features of the camera. There are two separate bellows. The rear bellow is for magnification, and the front bellow is for focus (with a focus lock to prevent drift). The magnification settings are from .7 to 1.5, with a diamond shape between .8 and .9, which seems to be the point at which the edge of the camera isn't visible in the shot. I would imagine that the numbers mean exactly what they say...that .7 is 30 percent smaller than the actual image, while 1.5 is 150 percent larger. The focus makes less sense to me. The numbers are from 1 to 10. But when you have the focus set at farthest away from the image (bellows short), it sits at 7, and fully extended, the knob turns a couple times around. So I have no real frame of reference for what these mean. It's even tough to say "I had the focus set at 8," because there is 8, and then there is 8 again when you turn the knob around past 7 again. So I basically use a bit of guesswork and intuition when focusing. It's not all that important anyway, for reasons I will explain when I show some output images.
Here is the camera at lowest magnification and closest focus...
And highest magnification and furthest focus...
And, just because, here is the bottom with some mystery port.
So a neat camera, eh? How I use it in the future remains to be seen. I've never been a huge fan of macro. There is some interesting stuff, but, really, how many shots of leaves and flowers do I want to do? So I need to think about how to use it without falling into the usual cliches. A leaf or flower shot every now and then is okay, maybe a bug if i can get one, but I want to maybe be a bit more original. The rusty gears are grinding away.
Just because, here are some different oscilloscope Polaroid cameras. All of these images were nabbed from eBay, just so you can see some design variations. The roll film back is interesting.
What's next? Well, I did a little comparison between my two high-end Polaroid cameras, the 180 and 195.
he results were less than surprising, but still somewhat interesting. More on that later. I also picked up a Fuji Instax 200, which is wide-angle integral film. The camera is built like a Fisher Price camera for adult hands...huge and goofy looking. But it might be fun.
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